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Alex_Xolod [135]
2 years ago
13

B) Expand and simplify. (m-3) (m+2)​

Mathematics
2 answers:
ivolga24 [154]2 years ago
6 0

Answer:

m^2 - m - 6

Step-by-step explanation:

(m-3)(m+2)

m^2 - 3m + 2m - 6

m^2 - m - 6

lesantik [10]2 years ago
6 0

Answer:

m^2-m-6

Step-by-step explanation:

m(m+2)-3(m+2)

m^2+2m-3m-6

m^2-m-6

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2nd slot: 19 (1 went to first slot)
3rd slot: 18
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20*19*18*17*16=186,040 ways
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Gnom [1K]

Answer:

105/5 i believe

Step-by-step explanation:

6 0
3 years ago
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Dmitrij [34]

Answer:

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The tensile strength of a metal part is normally distributed with mean 40 pounds and standard deviation 5 pounds. If 50,000 part
nalin [4]

Answer:

a) how many would you expect to fail to meet a minimum specification limit of 35-pounds tensile strength?

7933 parts

b) How many would have a tensile strength in excess of 48 pounds?

2739.95 parts

Step-by-step explanation:

The formula for calculating a z-score is is z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

a) how many would you expect to fail to meet a minimum specification limit of 35-pounds tensile strength?

z = (x-μ)/σ

x = 35 μ = 40 , σ = 5

z = 35 - 40/5

= -5/-5

= -1

Determining the Probability value from Z-Table:

P(x<35) = 0.15866

Converting to percentage = 15.866%

We are asked how many will fail to meet this specification

We have 50,000 parts

Hence,

15.866% of 50,000 parts will fail to meet the specification

= 15.866% of 50,000

= 7933 parts

Therefore, 7933 parts will fail to meet the specifications.

b) How many would have a tensile strength in excess of 48 pounds?

z = (x-μ)/σ

x = 48 μ = 40 , σ = 5

z = 48 - 40/5

z = 8/5

z = 1.6

P-value from Z-Table:

P(x<48) = 0.9452

P(x>48) = 1 - P(x<48)

1 - 0.9452

= 0.054799

Converting to percentage

= 5.4799%

Therefore, 5.4799% will have an excess of (or will be greater than) 48 pounds

We are asked, how many would have a tensile strength in excess of 48 pounds?

This would be 5.4799% of 50,000 parts

= 5.4799% × 50,000

= 2739.95

Therefore, 2739.95 parts will have a tensile strength excess of 48 pounds

4 0
3 years ago
HELP ASAP DUE TOMORROW!!! NUMBER 2!!
murzikaleks [220]
The answer is D) 602.88

Example: The formula is V= pi r*r*h V = 3.14 (4* 4) (12) V = 3.14 (16) (12)
V= 3.14 * 192 = 602.88m squared
8 0
3 years ago
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